Electrical bond.



E. E. SLICK & C. W. PARKHURST.

ELECTfllCAL BOND.

APPLICATION FILED Nov. 18.1915.

1, 255,1 1 9, Patented Jan. 29, 1918 Inmmmm UNITED STATES PATEN OFFICE.

EDWIN E. SLICK AND CHARLES W. PLBKHURST, OF WESTMONT BOROUGH, PENi'SYL- VANIA.

nnnc'rmca n noun.

Specification of Lcttcrl Patent.

Patented Jan. 29,1918.

Original application filed April 28, 1915, Serial No. 24,587. Divided and this applicitlondled November 18,

1915. Serial No. 62,085.

To all whom it ma concern:

Be it known that we, EDWIN E. SLICK and CHARLES W. Pannmms'r, citizens of the United States, and residentsof the borough of Westmont, in the county of Cambriu and State of Pennsylvania, (whose postoflice addresses are Johnstown, Pennsylvania,) have invented certain new and useful Im rovements in ElectricalBonds'; and we do ereby declare the following to be a full, clear, and exact description 'of the invention, such as will enable'others skilled in the art to which it appertains to make and use the same Our invention relates to electrical connectors which-are used to connect to ether the track rails of railways, the thir and conduit rails of electrical railways and has for one of its objects the production "of a bond of simple and easy construction, of ample carrying capacit and with the various parts so intimate] joined that there is no reduction of their electric conductivity, thereby forming aconnection of highelectrical efiiciency, and is a division of an application-filed April28, 1915, Serial No. 24,567.

The terminal-is so constructed as to be easily and perfectly connected electrically to the rails or other conductors and the intermediate portions may be' flexible to allow for ansion, contraction, or 'adjustment aroun obstacles such as splice bars, bolts, nuts,'-etc. c

The terminalshave an outwardly exteng; ing riveting plug portion adapted to mse member and upset and riveted firmly therein; the portion of the terminal directly opposite said riveting'plug is of solid metal integral with the plug and of ample surface to receive a backing-up toollor that portion of the riveting tool which holds the lug firmly in place, while the rivet itsel i is being upset in the hole or driven by a riveting or upsetting machine or by a hand hammer or otherwise.

This form of-riveting plug with-solidintel backing is a particular feature of our mventionand obviates .difliculties previously had when the rear portion of the plug is made hollow or partially, so or not really solid, in which case it is upset or deformed the end of the cable metal of the same general character or fil- 111 a reamed-hole in the rail or other melt the same by the pressure of the backing-up tool when held against it for the purpose of holding it when u tting the rivet in the bond hole.-

Extending from the back phrtion, of the riveting plug the backing continues integrally and at an inclination thereto to a socket of preferably cylindrical form for receive the twisted cable or other flexible intermediate member. The cable or rod is then introduced into the c lindrical hole in the terminal extent a osttothe end of said hole, and in t .a piece or pieces of Luis orchips of-the same are introduced and a ot flame is applied andmore or chips of metal are added if necemary, whereby the end of the cable pr is fused and the opening is filled 'up with .fused metal which causesthe end of the rod or cable to becomehomogeneously united with the terminal, whereupon the hot flame is withdrawn and the terminal withi-the attached cable orarodis allowed fo-cool and,

if desired, may be annealed by plunging in water when hot l y For the purpose ofrilaking this connection 0 space adjacent to- Y between the cable orxlfod and-the. terminal,

weprefer to use an city-acetylene blow pipe flame and may use pieces of scrap metal such as copper orscr'ap copper w re and in or into the opening. previously mentioned. y

Previous to introducing-this extra metal into the openin flame on the en' of,the cable or rod, partially fusing it andlthen' adding metal to the openingand fusing-thesame until the hole 15 closedand. the end of thelcable insra/lly unitedto the terminaL-If neces sary d desired the slight amount of excess metal may be ground, filed or votxierwise trimmed off, to make the desired co orination. If desired, we may project the end of the cable slightly beyond the hole and wen ay direct the hot fuse this to the sleeve without adding other metal.

The axis of the end of the terminal which receives the cable is arranged at an angle In the axis of the riveting plug so that the cable orrod projects from the terminal to I the proper degree to pass around the Slllil't. bars or other constructions ad acent thereto.

this form of connection being particularly.

adapted to what is known as an outside bond which'passes around the splice bar of the rail and preferably below the heads or nuts invention, we will now, in order to make the ,same more clear, refer to the. accompanying one sheet of drawings ganncxcd to this specification, which illustrates the method of constructing a bond and the hand itself in accordance with our invention. -i'h wh1ch:-.-

Y lace with a cylin rical hole thercimlas indicated by dotted lines within the'fi 'iu'c, or this terminal maybe made solid and the hole'drilled therein, as alsoindicated -by*th'e dotted lines within and without thehg gge; F ig; 2 is an end elevation of the'term n'al; Fig. -3 is a longitudinal sectionalillustrating the manner of fusing cable to t ipe flame and added material; Fig. i is a the bond ongitudinal sectional elevation oi the fini'shed terminal after the cable is fused or welded therein; Fig. 5 is a bottom an view of finishcd'end of the terminal with a portion of the cable attached therein, and Fig' '6 is a horizontal sectional plan of a puirof rails united by the cnstomaryfsplice bars and bolts with our bond shown in place connecting the ends of the rails, this view clearly showin the valnefof the inclined portions '2 of t e terminals and the manner in which the lead and direct the cable nroundthe s'p ice bars without unnecessary bending of the cable.

Referring now to the characters of reference on the drawings:-1 1s the terminal casting as a whole and 2 the cylindrical inclined body portion, 3 the riveting or attaching plug having a head 4 with a curved or fillet connection 5 between the inclined c 'lindric 1 body portion 2 and the head 4. A coui' depression 6 is formed in the end of the riveting plug 3 to register with a cor responding projection on the riveting or upelevation e terminal by means of'fi blowsetting fOOl. The bfifi t'ht liflfii'hi twfitlug is provided with a solid integral portion T, which preferably has a flat surface as shown, to receive the backing-up tool to lirmly hold the plug in place when expanding or riveting it into the bond hole. As shown in Fig. 1, the cylindrical portion .2 may he formed hollow in the first place, or by drilling or boring its central portion to form the sleeve 8, the inner edge 9 of which is rounded, as shown, so that the cable may bend around this rounded edge without cutting or deformation, this being a particular feature of our construction. As indicated particularly in Fig. 3, 10 indicates added material'snch as scrap pieces of metal ,or metal wire which are placed within the opening in the terminal adjacent to the end of the cable and which are fused and welded thcreintothe cable by the blow-pipe flame 11, issuing from the nozzle 12. We prefer to use for this purpose an 'oxy-acetylene flame, as it furnishes an easil controlled high temperature. The end of the cable may be inserted into, through and slightly pl'njcctlt from the hole in the sleeve 8 and the end the cable is then flused, together with a slight fusing of-th" ad' cable 13 may be inserted in the sin tions of the terminal; or the and of'fthe Figure 1 is a side elevation of one of'the;

terminals which ma be made in ,tn Hist. g yys ol v a smallsp -,g :l ucent to its end, after whichadded metal ,therein is placed within or abovethe opening and a -and formed substantially integral at this .place so as 'to make a perfect electrical connechon. aprotectorfor the end of the able and insures that'the cablelshall remgin 'anited to the terminal, while the rounded inner edge Thesleeve 2 of the terminal forms a 9 of t-hesleeve allows the cable to be bent as desired without cutting or distorting the same.-

Although wehave shown and described our invention in considerabledetail, we do.

' not. wish to be limited-to the exact details of construction specified, but we may use such substitutions, modifications or eqniv lents thereof as are embraced within the. scope of our invention as pointed out in the claims.

Having thus described our invention, what we claim and desire to secure by Lettcrs Patent is 1. In an electrical bond a terminal provided with a riveting plug, a back portion or head formed integral therewith, a sleeve pro ectm at an inclination from said back.-

a cable, t e end of which is inserted in said sleeve, a portion of the end of said cable being fused and the strands integrally united and secured to fused portions of t ie inner surface of said sleeve, said cable and sleeve being composed of similar materials, whereby an integral union is provided between said sleeve and said cable.

.2. In an electrical bond a riveting plug provided with an integral head or back, an integral hollow sleeve projecting at an angle from said back, a cable, the end of which is inserted in said sleeve, a portion of the end of said cable being fused and the strands integrally-united and secured to fused portions of the inner surface of said sleeve, said cable and sleeve being composed of similar materials, whereby an integral union is provided between said sleeve and said cable.

3. An electrical bond, comprising a riveting plug having an integral head or back, an integral hollow sleeve projecting from said back, the interior edges of said sleeve being rounded, a cable, the end of which is inserted in said sleeve, a portion of the end of said cable being fused and the strands in-' tegrally united and secured to fused portions of the inner surface of said sleeve, said cable and sleeve eing composed of similar materials, whereby an integral union is provided between said sleeve and said cable.

4. An electrical bond, comprising a. riveting plug, a flat faced back having an integral hollow sleeve projecting at an angle from said back, the interior edges of said sleeve being rounded, a cable, the end of which is inserted in said Sleeve, 9. portion of the end-of said cable being fused and the strands integrally united and secured to fused portions of the inner surface of said sleeve, said cable and sleeve being composed of similar materials, whereby an integral union is providedbetween said sleeve and said cable.

In witness whereof we have hereunto set our hands in the presence of two witnesses. 40

Witnesses:

FRED A. STAIIL, Omvmz B. Hrcxox. 

